Metro Fire Protection Services,Inc




                Use the correct extinguisher for the type of of fuel !!

              Using the incorrect agent can allow the fire to re-ignite

                    after apparently being extinguished successfully

 Dry Chemical

 Fire Equipment Manufacturer's Assoc.

 Powder Based  - prevents the chemical reactions involving heat, fuel, and oxygen

 The most common, most familiar, is the hand held "ABC" 5 and 10 pound models

 ABC  type extinguishers use mono ammonium phosphate mixture as the agent

 to coat the surface of Class A fires  (ordinary combustibles-wood,paper,etc),

 it smothers and breaks the chain reaction of Class B fires (flammable liquid/gas),

 and it will not conduct electricity making it save to use on Class C electrical fires



   Dry Powder

 Similar to dry Chemical extinguishers except they separate the fuel and the oxygen

                                        (or by removing heat when applied)

                  However they are for Class D fire only (combustible metals)

                          they are ineffective on all other types of fires




  Pressurized Water

 Uses ordinary water and ordinary air under pressure usually from a 2.5 gallon tank

          Easily refilled and then pressurized via a Schrader valve (like a car tire)

                        Only effective on Class A (ordinary combustibles)

       Inexpensive to build and maintain and leaves no special chemical residue

   These "water cans" have an initial range of 40-50 ft and last about 50 seconds




   Water Mist

        Water Mist extinguishers reduce the heat of a fire below combustion levels

     the water mist curtain created also can separate the oxygen from the fire

 An alternative to "Clean Agent" extinguishers when contamination is a concern

   First introduced within the United States market in 1997 for multi-class fires

 these devices can be used on Class C because the water is delivered by droplets

 rather than a stream. The path back to the operator is broken preventing shock

 Often times referred to as Dry Water, they can be used on most common fires

    Nonmagnetic construction for safe use around MRI facilities and computers

       Contains deionized water- best for hospitals, museums, valuable books

           and documents, telecommunication, and clean room environments

 Th e ultimate choice for Class A fires and where potential electrical shock exits

                                  Most Economical Agent Available


   Carbon Dioxide

 Carbon Dioxide (CO2) takes away the oxygen, can reduce heat by cold discharge

                       not unusual for bits of dry ice to be discharged on use

   Used on Class B (ordinary) and Class C (electrical) fires, inefficient on Class A

        Recognizable by its cone shaped funnel-like nozzle and lack of a gauge

 Ozone friendly clean agent, developed for Bell Telephone 1n 1924 for telephone

  switchboards due to non-conductible properties. Used often in television to

  extinguish burning stunt men, and frat houses to rapidly cool beer.




   High Flow


 High Flow stored-pressurized extinguishers designed for flammable liquids and gas

 Quickly discharges dry chemical agents faster (1lb per sec +) from a safer distance

 Designed for commercial application to meet compliance requirements in such

 places as fueling stations, hazard cabinets, marinas, paint booths, and propane sites

 Available as a mono ammonium phosphate agent for use on Class A,B,C fires

 Available as Purple-K potassium bicarbonate for superior control of Class B,C fires

   AFF Foam

  Aqueous Film Forming Foam (AFFF) is intended for B Class fires

            it also suppresses vapors from the fuel and works on A Class fires

 Developed by 3M and US Navy in the 1960's and now widely used at airports

           AFFF is the most common type in portable foam extinguishers

 A Aqueous (water-like) Film is Formed that floats out before the Foam

 sealing the surface of the fuel and smothering out the oxygen breaking the fire

    Unlike powder, foam can be used progressively without flashback from vapors

              Available in 1%, 3%, and 6% mixtures depending on need

   K Class

 K is for Kitchen, the higher flash point of unsaturated cooking oils makes these fires important enough to warrant a separate classification from flammable liquids

 Hand held extinguisher are meant to supplement automatic suppression systems,

 both commercial and residential use, and as stand alone everywhere oil is heated

 Considered a wet chemical extinguisher, the agent is discharged as a fine mist in

 order to prevent grease splash and re-flash while cooling the cooking appliance


    Halon remains the most effective "clean " extinguishing agent available

 The National Fire Protection Association (NFPA) defines a Clean Agent as:

           "an electrically non-conductive, volatile, or gaseous fire extinguishant

            that does not leave a residue upon evaporation "

 Halon is a liquefied, compressed gas that disrupts the chemical bond of fires

 Due to its chlorofluorocarbon (CFC) content Halon production stopped in 1994

     The Environmental Protection Assoc (EPA) recognizes Halon's importance

 Recycling and responsible use of the existing supply makes it readily available

 Its use continues today to provide superior extinguishing abilities for sensitive

 manufacturing, computers, museums, communication rooms, and aircraft, e.g.

              searching for viable environmental alternatives is ongoing

  •  Halon 1211  - a liquid  streaming agent (discharge at approx 85% liquid,15% gas)
  •  Halon 1301 - a gaseous flooding agent
  •  low toxicity, chemically stable, no residue
  •  safe for human exposure, does not displace room air  (5-8% halon by volume)
  •  rated for Class B and Class C fires, effective on Class A

 Haoltron is a clean, proprietary chemical blend extinguishing agent intended

 to replace Halon 1211 as  a safe, effective, environmentally acceptable agent

 that discharges a chemical blend as a liquid and evaporates quickly


Metro Fire Protection Services, Inc.

1501 SE Decker Ave -  Unit 522

  Stuart, Florida 34994

(772) 288-0615

 (888) 297-0615  Fax: (772) 288-5122

copyright 2017